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Finding the Fourth Proportional to 8,969.43, 13,451.41 and 7,210.26

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Solution

The fourth proportional to 8,969.43, 13,451.41 and 7,210.26 is: 10,813.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.43 : 13,451.41 = 7,210.26 : x
  2. Step 2: Convert to fraction form
    8,969.43/13,451.41 = 7,210.26/x
  3. Step 3: Cross multiply
    8,969.43x = 13,451.41 × 7,210.26
  4. Step 4: Simplify right side
    8,969.43x = 96,988,131.92
  5. Step 5: Solve for x
    x = 96,988,131.92/8,969.43
  6. Step 6: Final answer
    x = 10,813.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.